COMPUTER NETWORK DEFENSE Flashcards
What is used by Circuit Switched Networks?
Fiber Optic
What is used by Packet Switched Networks?
Ethernet Cable
What is a Backbone Router?
Moves data without being part of an autonomous system
What is an Area Border Router?
Attaches network to backbone routers
What is ARP?
Address Resolution Protocol;
IP address to MAC
What is DNS?
Domain Name Service;
Name to IP
What port is TELNET?
23
What port is FTP?
21; File Transfer Protocol
What port is SNMP?
161; Simple Network Management Protocol
What port is SMTP?
25; Simple Mail Transfer Protocol
What port is DNS?
53; Domain Name Service
What port is HTTP?
80; Hyper Text Transfer Protocol
What port is POP3?
110; Post Office Protocol
What port is SSH?
22; Secure Shell
Why is SSH preferred over TELNET?
SSH is encrypted